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Finding the Fourth Proportional to 66,551.03, 91,838.01 and 36,335.80

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Solution

The fourth proportional to 66,551.03, 91,838.01 and 36,335.80 is: 50,142.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,551.03 : 91,838.01 = 36,335.80 : x
  2. Step 2: Convert to fraction form
    66,551.03/91,838.01 = 36,335.80/x
  3. Step 3: Cross multiply
    66,551.03x = 91,838.01 × 36,335.80
  4. Step 4: Simplify right side
    66,551.03x = 3,337,007,104.57
  5. Step 5: Solve for x
    x = 3,337,007,104.57/66,551.03
  6. Step 6: Final answer
    x = 50,142.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.